OMG guys... can we do an event with this? I would totally attend... Here, let the brilliance of this amendment to Chaos Daemons sink in:
5.3 Chaos Daemons
5.3.1 All Factions – Chaos Daemons
Fateweaver’s re-roll may only be used for rolls to hit, to wound and saving throws
The Grimoire of True Names may never improve a unit’s invulnerable save beyond a 3+
5.3.2 Humanity – Aspect of Experience – Chaos Daemons
Khorne: If your army (including Allies) is comprised entirely of Daemons of Khorne, all models
gain Assault Grenades and Feel No Pain (5+) against shooting attacks.
Slaanesh: If your army (including Allies) is comprised entirely of Daemons of Slaanesh, all
models gain Assault Grenades, and the Shred special rule.
5.3.3 The Virtue – Aspect of Implacability – Chaos Daemons
Tzeentch: If your army (including Allies) is comprised entirely of Daemons of Tzeentch, all
psychic tests are passed automatically. You must roll the test regardless – Perils still applies.
Nurgle: If your army (including Allies) is comprised entirely of Daemons of Nurgle, all models
gain Fleet and the ability to Run regardless of the Slow and Purposeful USR.